Biology 2a - Cells, Organs and Populations DIFFUSION 0.0 / 5 ? BiologyCells, tissues and organsGCSEAQA Created by: wseneCreated on: 21-02-14 14:56 Diffusion The spreading out of particles from an area of high concentration to an area of low concentration. 1 of 5 What other features do cell membranes have? They hold the cell together BUT also allow diffusion to happen. It allows dissolved substances to move in and out of the cell. 2 of 5 What type of cells can diffuse through cell membrane? Only small cells, such as: Oxygen, glucose, amino acids and water. 3 of 5 What type of cells cant diffuse through cell membrane? Big molecules, such as: Starch and proteins. 4 of 5 What does diffusion happen in? Substances and gases. 5 of 5
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